Borrallo was trained at London's Norland College, an institution that specializes in childcare and nanny training. She recently started working with the Duke and Duchess of Cambridge and will be accompanying the family on their tour of Australia and New Zealand in April, the rep tells Us.

The palace requests that, as an employee of the royal household, Borrallo and her privacy — as well as the privacy of her family and friends — be respected. "We will not be giving further details on Maria or her employment, except to say that the Duke and Duchess are of course delighted she has chosen to join them," the rep says.

Speculation about Borrallo began earlier this month, when she was spotted pushing Prince George in a stroller in Kensington Gardens. At the time, an insider told Us that the family's new hire was in her 30s and from Spain, though she has reportedly lived in the U.K. for more than two decades.

George's previous nanny was Jessie Webb, who looked after Princes William and Harry when they were children. She came out of retirement specifically to assist the Duke and Duchess after their son's July 22 birth.